eric-xw / AREL

Code for the ACL paper "No Metrics Are Perfect: Adversarial Reward Learning for Visual Storytelling"

No Metrics Are Perfect: Adversarial REward Learning for Visual Storytelling

This repo is the implementation of our paper "No Metrics Are Perfect: Adversarial Reward Learning for Visual Storytelling", which also provides a codebase for the task of visual storytelling.

In the AREL paper, we not only introduce a novel adversarial reward learning algorithm to generate more human-like stories given image sequences, but also empirically analyze the limitations of the automatic metrics for story evaluation. For more details, please check the latest version of the paper: https://arxiv.org/abs/1804.09160.

Prerequisites

• Python 2.7
• PyTorch 0.3
• TensorFlow (optional, only using the fantastic tensorboard)
• cuda & cudnn

Usage

1. Setup

Clone this github repository recursively:

git clone --recursive https://github.com/eric-xw/AREL.git ./

Download the preprocessed ResNet-152 features here and unzip it into DATADIR/resnet_features.

2. Supervised Learning

We use cross entropy loss to warm start the model first:

python train.py --id XE --data_dir DATADIR --start_rl -1

Check the file opt.py for more options, where you can play with some other settings.

3. AREL Learning

To train an AREL model, run

python train_AREL.py --id AREL --start_from_model PRETRAINED_MODEL

Note that PRETRAINED_MODEL can be data/save/XE/model.pth or some other saved models. Check opt.py for more information.

4. Monitor your training

TensorBoard is used to monitor the training process. Suppose you set the option checkpoint_path as data/save, then run

tensorboard --logdir data/save/tensorboard

And then open your browser and go to [IP address]:6006 (the default port for tensorboard is 6006).

5. Testing

To test the model's performance, run

python train.py --option test --beam_size 3 --start_from_model data/save/XE/model.pth

or

python train_AREL.py --option test --beam_size 3 --start_from_model data/save/AREL/model.pth

Reproducing our results

We uploaded our checkpoints and meta files to the IRL-ini-iter100-*. Please load the model from these folders by running

python train.py --option test --beam_size 3 --start_from_model [best_model_path]

If you find this code useful, please cite the paper

@InProceedings{xwang-2018-AREL,
  author = 	"Wang, Xin and Chen, Wenhu and Wang, Yuan-Fang and Wang, William Yang",
  title = 	"No Metrics Are Perfect: Adversarial Reward Learning for Visual Storytelling",
  booktitle = 	"Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)",
  year = 	"2018",
  publisher = 	"Association for Computational Linguistics",
  pages = 	"899--909",
  location = 	"Melbourne, Australia",
  url = 	"http://aclweb.org/anthology/P18-1083"
}

Acknowledgement

• VIST evaluation code